Haar Airport (9OH1), the home of the Portage Valley Flying Club.

The easiest way to find Haar airport is to start somewhere obvious, such as Toledo Express.
Follow the turnpike to the Southeast to Metcalf, then an additional 11nm. Look for
a triangular pond, a sharp break in a treeline, and a turnpike exit all next to each other.
Haar is just to the Northeast; the break in the treeline is on short final for Runway 9.

Use 122.75 Mhz (the general air-to-air frequency) to announce your position in the pattern.